Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01975f2025199ed…

MALICIOUS

PDF

71.3 KB Created: 2020-12-26 15:09:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 3eda1c3f0807f8b3e42517f510f483ae SHA-1: bfe9618ee514a3bc7fddbc4a62902639833b65f5 SHA-256: c01975f2025199ed37b1af92adaed8a40ae0c782da3e6f0db180d692c17c1bac
222 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one pointing to a known malicious redirector, and is flagged by ClamAV as a phishing trojan. The document body, though heavily obfuscated, appears to contain a lure related to downloading a movie, which aligns with the malicious redirector URL. The presence of embedded URLs and the heuristic firings strongly suggest a phishing attempt designed to lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffmen.ru/123?utm_term=the+lightning+thief+full+movie+free+download In PDF document text
    • https://static.s123-cdn-static.com/uploads/4457592/normal_5fc53146535ff.pdfIn PDF document text
    • https://zowadadevifu.weebly.com/uploads/1/3/4/5/134597758/4996264.pdfIn PDF document text
    • https://cdn.sqhk.co/jafetegupam/aigEajj/sin_pin_code_number_ahmedabad.pdfIn PDF document text
    • https://mepafuxutare.weebly.com/uploads/1/3/4/6/134660934/5b8bf3948c1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402960/normal_5fe69217f421e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378164/normal_5fcdc4106abb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389606/normal_5fd2a44148598.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366637/normal_5fe449c34e9ad.pdfIn PDF document text
    • https://subilitukufune.weebly.com/uploads/1/3/4/6/134629352/ridifinibul_perumoriderova_gogojebep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/66399491499.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/excel_spreadsheet_on_android_tablet.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/cheer_music_maker_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/what_is_a_floating_holiday_at_cvs.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/louisiana_state_police_accident_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/lexipipekogedaduk.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/onam_2019_wishes_malayalam_images.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE5 5244 bytes
SHA-256: ea2641342aef51bb443682622711d95e2b2c324e08b467b0e3eac86ee96ff82a
font_01_sfnt_off0000ecab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECAB 10212 bytes
SHA-256: 938142aa76209d44ae310ee1a7f3b322621a5f4f3103ed64ad4ee815a4706492

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